One person takes $3 worth of crayons and another person takes $5 worth of crayons. 20 crayons for $1. How many red crayons were bought?

160 crayons

Step-by-step explanation:

20 crayons - $1

? crayons - $3, $5

20 x 3 = 60

60 crayons - $3

20 x 5 = 100

100 crayons - $5

100 + 60 = 160

160 crayons were bought in all.

Hope this helps!

the expected value of the random variable : 0, 1 and 2

step-by-step explanation:

logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.